Free macOS App

All your sources.
One place to learn.

Track everything you read, watch, and listen to. Then quiz yourself with Claude or ChatGPT — the single most effective way to actually remember it.

Free. Works with your existing Claude or ChatGPT subscription. macOS 14+

FeynmanLM on Mac
How It Works

From scattered sources
to deep understanding

01

Track your sources

Add anything you learn from. FeynmanLM keeps it all in one library in your iCloud.

Apple Podcasts Books (PDF, ePub) Articles Publications YouTube Videos Courses
02

Search your library

Find what you need across all your sources instantly.

03

Add sources to your AI context

Select sources and put them in your MCP context window. This gives Claude or ChatGPT access to the full content.

Selected Sources
MCP Server
Claude / ChatGPT
04

Open Claude or ChatGPT

Your sources are now available in the AI app. Works with the subscription you already have — no API keys needed.

05

Quiz yourself

Research is clear: quizzing yourself is the single most effective way to learn. Not re-reading, not highlighting, not summarizing. The AI tests your understanding, probes gaps, and saves your sessions. (Andrej Karpathy on this)

06
Coming Soon

Surface ideas & remember what you learned

Work with your past learning sessions to find connections between sources, surface new ideas, and revisit what you've learned before you forget it.

FeynmanLM is not a note-taking app. There are plenty of those. It's a source tracker and learning tool. You bring the content, AI brings the quizzing. Read more about our approach →

FeynmanLM

Start learning
for free.

FeynmanLM is a free macOS app. Works with your existing Claude or ChatGPT subscription. All data stays in your iCloud.